<template>
  <button class="g-button" :class="{[`icon-${iconPosition}`]: true}">
    <g-icon class="icon" v-if="icon" :name="icon"></g-icon>
    <div class="content">
      <slot></slot>
    </div>
  </button>
</template>
<script>
import Icon from './icon'
export default {
  name: 'GuluButton',
  components:{
    'g-icon':Icon
  },
  props: {
    icon: {},
    loading: {
      type: Boolean,
      default: false
    },
    iconPosition: {
      type: String,
      default: 'left',
      validator (value) {
        return value === 'left' || value === 'right'
      }
    }
  }
}
</script>
<style lang="scss" scoped>
@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

.g-button { font-size: var(--font-size); height: var(--button-height); padding: 0 1em;
  border-radius: var(--border-radius); border: 1px solid var(--border-color);
  background: var(--button-bg);
  display: inline-flex; justify-content: center; align-items: center;
  vertical-align: middle;
  &:hover { border-color: var(--border-color-hover); }
  &:active { background-color: var(--button-active-bg); }
  &:focus { outline: none; }
  > .content { order: 2; }
  > .icon { order: 1; margin-right: .1em; }
  &.icon-right {
    > .content { order: 1; }
    > .icon { order: 2; margin-right: 0; margin-left: .1em;}
  }
}
.loading{
  animation: spin 2s infinite linear;
}
</style>